How much do you really need to earn to feel comfortable in St. Louis — not just to survive, but to cover essentials, enjoy some discretionary spending, and still save? This calculator answers that by pairing St. Louis’s actual local costs with the widely used 50/30/20 budgeting rule, landing on a comfortable threshold near $49,000 for a single renter.
How it works
The tool starts from St. Louis baseline monthly costs: about $1,050 for a one-bedroom apartment, plus utilities, groceries, transit (a $70 Metro pass or equivalent driving cost), healthcare, and phone/internet. Those essentials are your needs.
Under the 50/30/20 rule, needs should be 50% of your take-home pay, so:
required take-home = monthly needs / 0.50
annual take-home = required take-home × 12
gross salary = annual take-home / (1 − tax wedge)
The tax wedge bundles federal income tax, Missouri state tax, and FICA into a single effective percentage (about 21% by default for this income band). Grossing up ensures the salary actually nets the cash your budget requires.
Tips and notes
The default output assumes a single renter; if you support a family, carry car debt, or rent in a pricier suburb like Clayton, raise the relevant fields and the comfortable salary climbs accordingly. Because St. Louis housing is well below the national average, the comfortable threshold here is markedly lower than in coastal metros — one of the city’s biggest affordability advantages.